Question

two wires of equal length one of copper and other of nichrome have the same resistance. which wire will be thicker?

Answer 1

copper has less resistivity then nichrome
and we know relation
R=rl/A
where R is resistance , r is resistivity , l is length of wire and A is cross section area.
here question ask both wires have same resistance and same length
it means
r=RA/l=(R/l) A=kA
hence
here resistivity related wire thickness
but above we were ask resistivity less in copper and high in nichrome.
so, nichrome will be thicker.

Answer 2

Answer:

Nichrome will be more thicker